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Discussion Starter #1
Hey everyone, got a weird issue with my 06 SLK. Sometimes when starting in the morning, none of my electronics is working. The car starts and runs just fine, but I have all kinds of problems, no windows, no esp, no air, top won't go down,srs not working, seems ALL my electronics aren't working. Now, sometimes I will go back and restart it a few hours later and everything is fine. I got no codes when plugging in my tester. Have heard a low battery could cause this and someone said that the key fob may need batteries. I have new batteries in that but have not changed my car battery. Any ideas?????
 

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Administrator 2009 SLK 55 AMG/Founding member 2006
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Welcome to SLKWorld.com: The #1 Mercedes-Benz SLK Forum from Florida!

owner's and maintenance manuals great R171 info:

later year owner's/maintenance/comand manuals, top right in the link below:
Bill's Den: Documents

Lube those seals:
http://www.slkworld.com/general-discussion/20937-spring-here~gummi-pflege-lube-your-seals-lithium-grease-your-joints-hinges.html#post226839

your brochure:
http://www.slkworld.com/general-discussion/167265-mercedes-brochure-archive.html#post1511249

mods you should do:
smarttop

http://www.slkworld.com/general-discussion/121481-what-smarttop-all-members-keep-talking-about.html

clear or tinted side markers
shorty antenna
led license plate bulbs
led parking lights
carbon fiber on the C pillars http://www.slkworld.com/general-modifications-r171/50849-ive-taken-cf-plunge.html
carbon fiber center caps
oem windscreen or lighted/etched windscreen

See my mod albums for more ideas

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Administrator 2009 SLK 55 AMG/Founding member 2006
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94,226 Posts
Yes
Change your car battery
SLKs love great batteries
not great batteries cause electronic issues of which you are experiencing many

how old is the battery? get it tested or get a new one
 

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Yep sounds like a battery problem to me. I know it's not an SLK, but my dad had the same issues with his Smart car for a while and it turned out to be the battery not being able to handle the strain it was under long term. Since Smart is owned by MB I don't doubt they can have similar problems.

Sent from my SAMSUNG-SM-G935A using Tapatalk
 

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Discussion Starter #5
Not sure how old the battery is. May even be the original. Have only had the car 2 years. Bought it when we lived in Arizona. And you know how hot it is there and the issues with battery drains and such. Will look into a new one and hopefully others will respond who have had the same issue. Thanks!!!!
 

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Super Moderator UK SLK 55 AMG 2007
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25,553 Posts
Not had the problem but I read most threads on here.

The number of times the battery gets mentioned as the first thing to fix is high.

The number of times folk try everything else first and then finally the battery is pretty high.

Yet so often it is the battery.

Go for that first.

If you don't know how old it is try this vid:
 

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Premium Member 2005 SLK55 AMG
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11,285 Posts
Hi and welcome to SLKWorld.com from the UK Midlands - Thanks for joining us! :)

+1 for checking the battery. As has already been said, these SLKs need a GREAT battery, not just a good one. My battery got low once, due to lack of use, then short journeys and raising/lowering the top a lot. I didn't get the number of errors you've seen, but I did get an ESP error that went away once the battery was fully charged again.
 

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Discussion Starter #11
Thanks everyone! Going to get a new battery in the morning. Time to watch some college football. This is a great site, and I'm gonna have to tell all my benz friends about it. Thank you so much for your help!! Will let you know how everything turns out...
 

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Premium Member 2009 SLK55 AMG
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Welcome from the Sacramento Valley SLK Enthusiasts!
 

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Welcome!

Just to let everyone know, I replaced the battery. Everything works just fine! Thanks to all of you. I'm sure we'll be talking again soon!!! :)
Good to hear it!

Yes, these cars put a hefty load on the battery. Lots of battery dependent stuff in them ... It's best to consider the battery as an expendable on about a three to four year cycle in normal use, based on my experience in use.

G
 

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Founding Member #2
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Welcome!



Good to hear it!

Yes, these cars put a hefty load on the battery. Lots of battery dependent stuff in them ... It's best to consider the battery as an expendable on about a three to four year cycle in normal use, based on my experience in use.

G
Recommend: A CTEK "smart" battery charger or similar and use weekly.
 

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Recommend: A CTEK "smart" battery charger or similar and use weekly.
Since my SLK is a daily driver (it's my only car...), there's never any real reason to use a battery charger. The battery is always fully charged by the day's driving.

G
 
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